Fetch GitHub comment history using the GraphQL API

[rgmz]

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Description

The current issue and pr scanning uses GitHub's REST API (e.g., processIssueComments uses the SDK to call List Issue Comments). Based on my research, switching to the GraphQL API should allow us to not only retrieve current content, but historical revisions as well.

Preferred Solution

This discussion provides insight into how we could fetch the desired information using GitHub's GraphQL API. More work is required to understand how difficult it would be to implement these changes.

https://github.com/orgs/community/discussions/33551

Additional Context

N/A

References

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